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Add posix semaphores support

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There's still some bugs to work out on Windows and OpenBSD.
This commit is contained in:
Justine Tunney 2022-10-14 08:25:47 -07:00
parent f52f65b2e3
commit 8111462789
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GPG key ID: BE714B4575D6E328
36 changed files with 779 additions and 59 deletions
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7
third_party/lua/lunix.c vendored
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@ -2856,8 +2856,8 @@ static int LuaUnixMemoryWait(lua_State *L) {
}
deadline = &ts;
}
rc = nsync_futex_wait_((int *)GetWord(L), expect, PTHREAD_PROCESS_SHARED,
deadline);
rc = nsync_futex_wait_((atomic_int *)GetWord(L), expect,
PTHREAD_PROCESS_SHARED, deadline);
if (rc < 0) errno = -rc, rc = -1;
return SysretInteger(L, "futex_wait", olderr, rc);
}
@ -2867,7 +2867,8 @@ static int LuaUnixMemoryWait(lua_State *L) {
static int LuaUnixMemoryWake(lua_State *L) {
int count, woken;
count = luaL_optinteger(L, 3, INT_MAX);
woken = nsync_futex_wake_((int *)GetWord(L), count, PTHREAD_PROCESS_SHARED);
woken = nsync_futex_wake_((atomic_int *)GetWord(L), count,
PTHREAD_PROCESS_SHARED);
_npassert(woken >= 0);
return ReturnInteger(L, woken);
}